Power-transmitting device



1,664,567 C. MCPHERSON POWER TRANSMITTING DEVICE April 3, 1928.

Filed April 14, L924 [THIN HI! I FIG'5.

Patented Apr. 3,1928.

YUNIT'ED"STATJEISIJPATENT OFFICE.

CHARLES ilrcrnnnsoiv, or MONTREAL, QUEBEC, CANADA, ASSIGNOR, BY MESNE AS? SIGNMENTS, TO FRIGTON rowan CORPORATION LIMITED, or MONTREALQQUEBEC,

CANADA.

' rowan-TRANSMITTING DEVICE.

.Application'filcd April 14, 1924. Serial No. 706,617.

The invention relates to power transmit 1S driven thereby, or itmay engage a disk as described in the present accomof the ting devices,

specification and illustrated in the panying drawings that form part same. 1

The invention consists essentially of the novel features of construction pointed out in the claim for novelty following a description containing an explanation in detail of an acceptable form of the invention.

The objects the product of the rotation of a vehicle Wheel or axle in driving a machine or device not connected with the main propelling power; to eliminate the expense of belts as transmitting members from a car axle to a dynamo or other machine; to effect economy particularly on steam railroads in the installation of lighting and ventilating systems in passenger cars, to reduce the cost of maintenance and at the same time insure a. positive and constant venience and discomfort to passengers on railways; to facilitate the repairs and replacements in power transmission under a railway car by avoiding complicated gear and generallymechanisms and belt drives;

to provide a serviceable, durable and efficient power transmission from the running gear of a vehicle.

In the drawings Figure 1 is a perspective view of the hanger and transmission friction wheel apart from the vehicle. Figure 2 is a vertical view of the hanger and transmission friction wheel.

Figure 3 is a skeleton view showing a front elevation of a car truck and the friction wheel driven by the car wheel.

Figure 4 is a skeleton view showing a front elevation of a car truck and the friction wheel driven by a disk, wheel on the axle.

Fi ure 5 is a side elevation of the train lighting mechanism.

modified form of the hanger.

Like numerals of reference indicate corresponding parts in the various figures.

Referring to the drawings, the rubber .50 tired friction wheel 1 preferably having the vacuum cup recesses 2 in the tire 3 is fixedly mounted on a shaft 4 connected through two 7 to the aroints 5 and 6 and slip ,Shafting mature shaft 8,

of the invention are to expend drive; to avoid the incon-' I membe the vacuum cup Figure 6 is a. perspective view showing a The wheel 1 engages the car wheel 9 and ivot forms the resilient section 17 adapted to holdthe bearing section 18 and wheeltherein to the tire of the car wheel or the axle disk.

The hanger box 19 is formed with sides 20 and 21 which form bearing supports for the pivot 16, stop and joining said sides and the flanges 23 for securing the'hanger to the truck. The spring 2& is introduced between the section 17 and encircles the boss 25 from said the wall 22 forming a spring section 17 and a similar boss from said wall 22 and this spring maintains the friction wheel 1 in engagement with the driving The only difference between Figures 1 and 6 are the shape of the rocker arm and situation of flanges in order to accommodate the invention to'the various makes of car trucks.

The rubber tire 3 insures constant rotation of the friction wheel 1 and this tire is let into the grooved rim 36 and preferably vul canized into the notches 37 said tirehaving recesses in the surface or merely roughened as found desirable.

In the operation of this transmission the rotation of the car wheel efiects the rotation of the transmission friction wheel, which is held to the wheel tire bythe resilient of'the rocker arm and no matter what position the truck frame may be in in relation to the wheel the friction wheel has ample space on the car wheel to maintain a steady to the dynamo or other machine. F urthermore the spring holding the friction wheel to the car wheel or axle disk can be made of any desired strength, so that by no chance will the proper frictional resistance be missing.

What I claim is:- In power transmission for train lighting purposes, a truck bracket formed with a base and parallel hangers therefrom const e section a drive.

tut'ing a pivot bearing therebetween and nailed at the outer end of said rockenarni, closed in-at the inner ends to forma housing a car aXIe-anda friction -disk fixedly inount i0 and an abutment for a spring, a rocker arin' ed on said axleand driving said friction having a central pivot orifice journalled in roller. 1 V v 5 said pivot bearing anloose spring engaging Signed at Montreal, Canada, this 21st the inner end or said arm and said abutment day of March 1924; and enelosedlby saidhousing, a friction r011- er and transmission shaft therefrom j'our- CHARLES MoPi-iERSQN. 

